... Quad-band 32 Ports gsm FWT pool 128sim cards with IMEI changeable 1.32 Port GSM/GPRS FWT,capable ... ,4.32 RJ11 interface,you can connect it with 32 telephones5.IMEI is easy to change,just ... new one with telephone keyboard .6.It is GPRS Quad-band 850/900/1800/1900mhz,works fine all over the world. ... using time or call out times3) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter ...